package com.atguigu.lease.web.app.service.impl;

import com.atguigu.lease.model.entity.BrowsingHistory;
import com.atguigu.lease.web.app.mapper.BrowsingHistoryMapper;
import com.atguigu.lease.web.app.service.BrowsingHistoryService;
import com.atguigu.lease.web.app.vo.history.HistoryItemVo;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.conditions.update.LambdaUpdateWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;

import java.util.Date;

/**
 * @author liubo
 * @description 针对表【browsing_history(浏览历史)】的数据库操作Service实现
 * @createDate 2023-07-26 11:12:39
 */
@Service
@Slf4j
public class BrowsingHistoryServiceImpl extends ServiceImpl<BrowsingHistoryMapper, BrowsingHistory>
        implements BrowsingHistoryService {

    @Autowired
    private BrowsingHistoryMapper browsingHistoryMapper;

    @Async
    @Override
    public void saveHistory(Long userId, Long roomId) {

        BrowsingHistory browsingHistory = new BrowsingHistory();
        browsingHistory.setUserId(userId);
        browsingHistory.setRoomId(roomId);
        browsingHistory.setBrowseTime(new Date());


        // 查询当前记录有没有保存 有保存就根据用户id以及房间id更新浏览时间
        Long count = browsingHistoryMapper.selectCount(new LambdaQueryWrapper<BrowsingHistory>()
                .eq(BrowsingHistory::getUserId, userId).eq(BrowsingHistory::getRoomId, roomId));

        if (count > 0) { // 有记录
            // 修改
            browsingHistoryMapper.update(browsingHistory,new LambdaUpdateWrapper<BrowsingHistory>()
                    .eq(BrowsingHistory::getUserId, userId).eq(BrowsingHistory::getRoomId, roomId));
        } else { // 没有记录
            // 添加
            browsingHistoryMapper.insert(browsingHistory);
        }

    }

    @Override
    public IPage<HistoryItemVo> pageHistoryByQuery(Page<HistoryItemVo> historyItemVoPage, Long userId) {
        return browsingHistoryMapper.pageHistoryByQuery(historyItemVoPage,userId);
    }
}




